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274 条记录 (耗时 0.158 秒)

    Optical disk
    1.
    发明授权
    Optical disk 有权
    光盘

    公开(公告)号：US06262969B1

    公开(公告)日：2001-07-17

    申请号：US09249593

    申请日：1999-02-12

    申请人： Hideaki Ito ,  Yuji Arai ,  Yuaki Shin

    发明人： Hideaki Ito ,  Yuji Arai ,  Yuaki Shin

    IPC分类号： G11B572

    CPC分类号： G11B23/40 ,  G11B7/24097 ,  G11B7/2472 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/256 ,  G11B7/2595 ,  G11B23/0028

    摘要： An optical disc having a transparent substrate, being recordable with a signal (s) by irradiating recording light at the side of the transparent substrate thereof, comprises a cover sheet being attached on the transparent substrate at a surface side for incidence of recording light and reproducing light, in detachable manner, wherein the stretching rate of the cover sheet is selected to be equal or less than 200%. Further, the thermal contraction rate of the cover sheet is selected to be equal or less than 1.5%, and the bonding force thereof onto a surface of the transparent substrate per 25 mm width to be from 10 g/25 mm width to 300 g/25 mm width. Thereby, the curve on the optical disc can be suppressed, if it is attached with the cover sheet of the surface of the transparent substrate thereof.

    摘要翻译： 具有透明基板的光盘可通过在其透明基板侧照射记录光而用信号记录，包括在透明基板上的表面侧安装用于记录光和再现的入射的盖板 以可拆卸的方式，遮盖片的拉伸速度选择为等于或小于200％。 此外，覆盖片的热收缩率选择为等于或小于1.5％，并且其每25mm宽度的透明基板的表面上的结合力为10g / 25mm宽至300g / 25毫米宽。 由此，如果与其透明基板的表面的盖板一起安装，则可以抑制光盘上的曲线。

    Optical information recording medium having protective layer
    6.
    发明授权
    Optical information recording medium having protective layer 失效
    具有保护层的光学信息记录介质

    公开(公告)号：US4920359A

    公开(公告)日：1990-04-24

    申请号：US376213

    申请日：1989-07-03

    申请人： Yuji Arai ,  Emiko Hamada ,  Yuaki Shin ,  Takashi Ishiguro

    发明人： Yuji Arai ,  Emiko Hamada ,  Yuaki Shin ,  Takashi Ishiguro

    IPC分类号： B41M5/26 ,  G11B7/24 ,  G11B7/254 ,  G11B7/257

    CPC分类号： G11B7/2575 ,  G11B7/2542 ,  G11B2007/24312 ,  G11B2007/24316 ,  G11B7/246 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/249 ,  G11B7/252 ,  G11B7/2534 ,  Y10S430/146 ,  Y10S430/151

    摘要： An optical information recording medium comprising a substrate, an optical recording layer formed over the surface of the substrate, and a protective layer covering the optical recording layer. The protective layer incorporates an antireflection means, such as a laser beam absorbing means, a laser beam scattering means or a laser beam transmitting means, for preventing the reflection of a laser beam applied to the optical recording layer.An optical information recording medium of a second embodiment of the present invention, comprises a substrate, an optical recording layer formed over the surface of the substrate, a protective layer covering the optical recording layer, and a buffer layer interposed between the optical recording layer and the protective layer. At least one of the protective layer or the buffer layer incorporates at least one antireflection means, such as a laser beam absorbing means, a laser beam scattering means and a laser beam transmitting means, for preventing the reflection of a laser beam. The buffer layer facilitates precisely forming recording bits in the optical recording layer by locally deforming the optical recording layer by a laser beam.

    Optical information recording medium
    7.
    发明授权
    Optical information recording medium 失效
    光信息记录介质

    公开(公告)号：US5090009A

    公开(公告)日：1992-02-18

    申请号：US340528

    申请日：1989-04-14

    申请人： Emiko Hamada ,  Yuji Arai ,  Yuaki Shin ,  Takashi Ishiguro

    发明人： Emiko Hamada ,  Yuji Arai ,  Yuaki Shin ,  Takashi Ishiguro

    IPC分类号： G11B7/0045 ,  G11B7/24

    CPC分类号： G11B7/24 ,  G11B7/00452

    摘要： An optical information recording medium comprising a light transmitting substrate, a light absorptive layer overlaying the substrate to absorb a laser beam and a light reflective layer overlaying the light absorptive layer, wherein an optical parameter represented by .rho.=n.sub.abs d.sub.abs /.lambda. where n.sub.abs is the real part of the complex refractive index of the light absorptive layer, d.sub.abs is the thickness of the light absorptive layer and .lambda. is the wavelength of a reading laser beam, is 0.05.ltoreq..rho..ltoreq.0.6, and the imaginary part k.sub.abs of the complex refractive index of the light absorptive layer is at most 0.3.